When you change a reservation in some way (for example, when you change the rate or number of guests), you might want to do so without changing the original price of the reservation. In this case, you can select an option called Keep old price.
However, in some cases the price might still change even if you select this option.
Why is the price changing?
If you are changing the number of people on the reservation, the price of the reservation will still change if there are stay products included in the reservation price which are charged per person. In this case, the price of the night remains the same but the product count changes (because the number of people changes).
If you want to keep the total price of the reservation the same when there are products charged per person, you need to reprice the reservation from the Pricing tab. To learn more, check out our guide: